Also available via Internet from the EPA Office of Research and Development web site. Address as of 8/27/2003: http://www.epa.gov/ORD/WebPubs/projsum/600sr94169. pdf; current access available via PURL.

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Also available via Internet from the EPA Office of Research and Development web site. Address as of 8/27/2003: http://www.epa.gov/ORD/WebPubs/projsum/600sr94169. pdf; current access available via PURL.